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The Pamphlet Collection of Sir Robert Stout: Volume 23
Class 13
Class 13.
| 442a | Woodford, James, Agent—:Professor Wheatstone's Telegraphic Instruments, affording a simple and easy means of communication, suitable for Public Offices, and where immediate correspondence is required. The arrangements being in ordinary alphabetical language, any person can receive and transmit a message without previous instruction. Constructed with permanent Electric Magnet—no Batteries or Acids are required. Further particulars will accompany the Instruments. |
| 443 | Woodford, James, Agent.—Telegraphic Instrument and Battery. |